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        <h2>
          <span class="refentrytitle">trandom</span>
        </h2>
        <p>trandom — 
     Generates a controlled pseudo-random number series between min and max values according to a trigger.
    </p>
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      <div class="refsect1">
        <a id="idp158904784"></a>
        <h2>Description</h2>
        <p>
      Generates a controlled pseudo-random number series between min and max values at k-rate whenever the trigger parameter is different to 0.
    </p>
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      <div class="refsect1">
        <a id="idp158906128"></a>
        <h2>Syntax</h2>
        <pre class="synopsis">kout <span class="command"><strong>trandom</strong></span> ktrig, kmin, kmax</pre>
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      <div class="refsect1">
        <a id="idp158980048"></a>
        <h2>Performance</h2>
        <p>
      <span class="emphasis"><em>ktrig</em></span> -- trigger (opcode produces a new random number whenever this value is not 0.
    </p>
        <p>
      <span class="emphasis"><em>kmin</em></span> -- minimum range limit
    </p>
        <p>
      <span class="emphasis"><em>kmax</em></span> -- maximum range limit
    </p>
        <p>
     <span class="emphasis"><em>trandom</em></span> is almost identical to <a class="link" href="random.html" title="random"><em class="citetitle">random</em></a> opcode, except <span class="emphasis"><em>trandom</em></span> updates its output with a new random value only when the <span class="emphasis"><em>ktrig</em></span> argument is triggered (i.e. whenever it is not zero).
    </p>
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      <div class="refsect1">
        <a id="idp158986592"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the trandom opcode. It uses the file <a class="ulink" href="examples/trandom.csd" target="_top"><em class="citetitle">trandom.csd</em></a>.
      </p>
        <div class="example">
          <a id="idp158988448"></a>
          <p class="title">
            <strong>Example 937. Example of the trandom opcode.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac     <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o trandom.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1

<span class="ohdr">seed</span> 0				<span class="comment">; every run time different values	</span>

<span class="oblock">instr</span> 1	
			
kmin <span class="opc">init</span> 0			<span class="comment">;random number between 0 and 220</span>
kmax <span class="opc">init</span> 220
ktrig <span class="op">=</span> p4
k1   <span class="opc">trandom</span> ktrig, kmin, kmax
     <span class="opc">printk2</span> k1			<span class="comment">;print when k1 changes</span>
asig <span class="opc">poscil</span> .4, 220<span class="op">+</span>k1, 1	<span class="comment">;if triggered, add random values to frequency</span>
     <span class="opc">outs</span> asig, asig

<span class="oblock">endin</span>
<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>
<span class="stamnt">f</span>1 0 4096 10 1

<span class="stamnt">i</span> 1 0 2 0	<span class="comment">;not triggered</span>
<span class="stamnt">i</span> 1 + 2 1	<span class="comment">;triggered</span>
<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
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        <p><br class="example-break" />
    </p>
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      <div class="refsect1">
        <a id="idp158992736"></a>
        <h2>See also</h2>
        <p>
      <a class="link" href="random.html" title="random"><em class="citetitle">random</em></a>
    </p>
      </div>
      <div class="refsect1">
        <a id="idp158994784"></a>
        <h2>Credits</h2>
        <p>Written by Gabriel Maldonado.</p>
        <p>New in Csound 5.06</p>
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